Hi, my question is for a Physics II lab class. Dealing with small slits and an incoherent light, I was asked to replace the large opening with slits...

Hi, my question is for a Physics II lab class. Dealing with small slits and an incoherent light, I was asked to replace the large opening with slits that are very small. Make a prediction of what you will see when you replace the large rectangular gap with a very narrow small slit?